War (n.) is essentially regulatory, which, strictly speaking, entails a passage from government to 'governmentality', in which war loses any element of exceptionality.
Definition.com
Definition.com
War (n.) is, for Foucault, a concept describing a certain type of force relation which have become hardened and established in and through war.
Definition.com
War (n.) is no longer waged in the name of a sovereign who must be defended, but rather on behalf of the existence of entire populations in the name of life necessity: Massacres have become vital.
Definition.com
War (n.) is the problem of political modernity par excellence.
Definition.com
War (n.) is made to win, not because it is just; the proletariat calls its war just because it means to take power, not the other way around.
More Michel Foucault
.com